Surge tanks found outboard of each main tank collect fuel overflow and fuel from the vent system.

A. Make sure that all the emergency exits are clear of unwanted objects.

B. Make sure that all the exits are clear of foreign objects.

C. Make sure that all the emergency entrance are freee of unwanted objects.

A. Each manufacturer is expected to abide by the Specification content and arrangement without any deviation in order to reasonably achieve the objectives of this Specification (enhance safety, reduce efforts, minimize costs).

B. It is mandatory that each manufacturer adhere to the Specification content and arrangement to achieve the objectives of this Specification (enhance safety, reduce efforts, minimize costs).

C. Each manufacturer is expected to adhere to the Specification content and arrangement reasonably so as to enhance safety, reduce efforts, and minimize costs which are the objectives of this Specification.

A. 确保舱门与其附近表面平齐。

B. 确保使用与舱门表面相似的材料对舱门进行打磨。

C. 确保舱门材料与其附近表面材料相同。

A. 当飞机离地时，最小的千斤顶的高度必须小于接头和地面之间的距离。

B. 给飞机安装轮子时，千斤顶的最低闭合高度不能超过顶块和地面之间的距离。

C. 在顶起飞机之前，最小的顶升高度必须小于顶块和地面之间的距离。

A. The generators supply a three-phase voltage. The frequency of this voltage increases when the generator rotor speed increases.

B. The rate of the three-phase voltage generated by the generator is proportional to the rotational speed of the generator rotor.

C. The frequency of the three-dimensional voltage produced by the generator is changed with the rotational speed of the generator rotor.

A. To make sure that ATC transceivers are in standby mode, you must simulate altitude, otherwise false TCAS signals may occur intermittently.

B. Make sure the ATC transmitters are in standby mode, or false TCAS targets may occur accidentally due to altitude simulation.

C. Make sure that the ATC transponders are in standby mode when you simulate altitude. You can accidentally cause false TCAS targets.

A. 确保两个活塞伸出长度相等。

B. 确保两个作动筒同时伸出。

C. 确保同时放出两个活塞。

A. 当襟翼完全放出后，马达停止。

B. 当襟翼运达终点时，马达会停止。

C. 当挡板的行程结束时，电机停止。

A. Illustrations should be used when they will simplify, shorten or make the text easier to understand.

B. When illustrations can simple, shorten or make the text easy for understanding, they may be used.

C. Whenever diagrams can simple, shorten or make the content easy to understand, they could be used.

A. 如果不实施保护，这种材料会导致表面腐蚀。

B. 在没有保护的情况下，这种材料的表面会出现腐蚀。

C. 这种材料会腐蚀未受保护的表面。